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><H1
><A
NAME="SQL-ALTERCONVERSION"
></A
>ALTER CONVERSION</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN59632"
></A
><H2
>Name</H2
>ALTER CONVERSION&nbsp;--&nbsp;change the definition of a conversion</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN59637"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>ALTER CONVERSION <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> RENAME TO <TT
CLASS="REPLACEABLE"
><I
>new_name</I
></TT
>
ALTER CONVERSION <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> OWNER TO <TT
CLASS="REPLACEABLE"
><I
>new_owner</I
></TT
>
ALTER CONVERSION <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> SET SCHEMA <TT
CLASS="REPLACEABLE"
><I
>new_schema</I
></TT
></PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN59645"
></A
><H2
>Description</H2
><P
>   <TT
CLASS="COMMAND"
>ALTER CONVERSION</TT
> changes the definition of a
   conversion.
  </P
><P
>   You must own the conversion to use <TT
CLASS="COMMAND"
>ALTER CONVERSION</TT
>.
   To alter the owner, you must also be a direct or indirect member of the new
   owning role, and that role must have <TT
CLASS="LITERAL"
>CREATE</TT
> privilege on
   the conversion's schema.  (These restrictions enforce that altering the
   owner doesn't do anything you couldn't do by dropping and recreating the
   conversion. However, a superuser can alter ownership of any conversion
   anyway.)
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN59652"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
>      The name (optionally schema-qualified) of an existing conversion.
     </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_name</I
></TT
></DT
><DD
><P
>      The new name of the conversion.
     </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_owner</I
></TT
></DT
><DD
><P
>      The new owner of the conversion.
     </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_schema</I
></TT
></DT
><DD
><P
>      The new schema for the conversion.
     </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN59675"
></A
><H2
>Examples</H2
><P
>   To rename the conversion <TT
CLASS="LITERAL"
>iso_8859_1_to_utf8</TT
> to
   <TT
CLASS="LITERAL"
>latin1_to_unicode</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER CONVERSION iso_8859_1_to_utf8 RENAME TO latin1_to_unicode;</PRE
><P>
  </P
><P
>   To change the owner of the conversion <TT
CLASS="LITERAL"
>iso_8859_1_to_utf8</TT
> to
   <TT
CLASS="LITERAL"
>joe</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER CONVERSION iso_8859_1_to_utf8 OWNER TO joe;</PRE
><P></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN59685"
></A
><H2
>Compatibility</H2
><P
>   There is no <TT
CLASS="COMMAND"
>ALTER CONVERSION</TT
> statement in the SQL
   standard.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN59689"
></A
><H2
>See Also</H2
><A
HREF="sql-createconversion.html"
>CREATE CONVERSION</A
>, <A
HREF="sql-dropconversion.html"
>DROP CONVERSION</A
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